Why is JavaScript necessary?

JavaScript is used on this website to provide advanced features.

Is it dangerous to enable JavaScript?

Some websites do exploit JavaScript, but JavaScript isn't inherently dangerous.
JavaScript can be used for both good and bad purposes. Your browsing experience
will be enhanced on this website by allowing JavaScript.

Can I enable JavaScript just for this one website?

Yes. If you are using Internet Explorer, it is possible to enable
JavaScript for "trusted" websites. It is recommended that you add this website to
your list of "trusted" websites and enable JavaScript for the "trusted" websites.